Harmonic Solutions, in conjunction with Zhuhai Wanlida Electric Co. one of China’s leading power electronics companies, now offers a range of advanced fast acting, medium voltage (MV) active (electronic) power compensation products.
This type of MV product is increasingly required to resolve a number of voltage quality and associated power problems.
The two most popular types of electronic MV equipment are static VAR controllers (SVCs) and Static compensators (STATCOMS).
Static VAR Controls (SVC)
SVCs are parallel connected devices which essentially vary the system reactive power by controlling the reactive impedance components by power electronic means and operates in conjunction with a local capacitor bank. There are various configurations but SVCs. However, they all are installed to resolve a number of problems, including:
- Voltage stability and regulation
- Attenuate voltage flicker (i.e. Pst and Plt)
- Reduce harmonics currents and associated voltage distortion
- Reduce temporary overvoltages
- Increase the transient stability and transfer capacity of the power system
- Dampen any power oscillations
Areas for application of SVC s are steel mills, arc furnaces, onshore and offshore wind farms or any heavy electrical or disturbing load.
Static Compensators (STATCOM)
Static compensators (STATCOM) provide both lagging and lagging variable reactive power control but without the use of reactors (as used in SVCs). The reactive power generation is achieved by monitoring and regulating the terminal voltage of the STATCOM.
Reactive power can be generated to compensate for lagging power factor or absorbed in order to correct leading power factor.
The areas of application for STATCOM are similar to those for SVCs.
Note: The use of SVC or STATCOM for a given application is determined by the precise technical and commercial requirements.
For further information on the Wanlida static VAR controller (SVC) – SVC (PDF)
For further information on the Wanlida static compensator (STATCOM) click here. STILL REQD